Basic Electronics (3110016) MCQs

MCQs of Bipolar junction transistors and its biasing

Showing 91 to 100 out of 117 Questions
7 8 9 10 11 12
91.
When comparing the power dissipation of a 2N3904 transistor to the PZT3904 surface mount version, the 2N3904
(a) Can handle less power
(b) Can handle more power
(c) Can handle more power
(d) Is not rated
Answer:

Option (a)

92.
The graph of current indicates that the current gain
(a) Is constant
(b) Varies slightly
(c) Varies significantly
(d) Equals the collector current divided by the base current
Answer:

Option (b)

93.
When the collector current increases, what does the current gain do?
(a) Decreases
(b) Stays the same
(c) Increases
(d) Any of the above
Answer:

Option (d)

94.
As the temperature increases, the current gains
(a) Decreases
(b) Remains the same
(c) Increases
(d) Can be any of the above
Answer:

Option (d)

95.
When the base resistor increases, the collector voltage will probably
(a) Decreases
(b) Stays the same
(c) Increases
(d) Do all of the above
Answer:

Option (c)

96.
If the base resistor is very small, the transistor will operate in the
(a) Cutoff region
(b) Active region
(c) Saturation region
(d) Breakdown region
Answer:

Option (c)

97.
Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is
(a) 0
(b) A few tenth of a volt
(c) 1 V
(d) Supply voltage
Answer:

Option (a)

98.
Three different Q points are shown on a load line. The upper Q point represents the
(a) Minimum current gain
(b) Intermediate current gain
(c) Maximum current gain
(d) Cutoff point
Answer:

Option (c)

99.
If a transistor operates at the middle of the load line, a decrease in the base resistance will move the Q point
(a) Down
(b) Nowhere
(c) Up
(d) Off the load line
Answer:

Option (b)

100.
If the transistor operates at the middle of the load line, a decrease in the current gain will move the Q point
(a) Down
(b) Up
(c) Nowhere
(d) Off the load line
Answer:

Option (a)

Showing 91 to 100 out of 117 Questions
7 8 9 10 11 12